CS2842A Ver la hoja de datos (PDF) - ON Semiconductor

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componentes Descripción

Fabricante

CS2842A

Off−Line Current Mode PWM Control Circuit with Undervoltage Lockout

ON Semiconductor 

CS2842A, CS3842A, CS2843A, CS3843A

PIN CONNECTIONS

DIP−8 & SO−8

1

COMP

VFB

Sense

OSC

8

VREF

VCC

VOUT

GND

SO−14

1

COMP

NC

14

VREF

NC

VFB

NC

Sense

NC

VCC

VCC Pwr

VOUT

Pwr GND

OSC

GND

VCC

GND

OSC

VFB

COMP

Sense

34 V

Undervoltage

Lock−out Circuit

Set/

Reset

16 V/10 V

(8.4 V/7.6 V)

5.0 V

Reference

2.50 V

Oscillator

Output

Enable

Internal

Bias

NOR

+

2R

−

Error

VC

Amplifier

R

1.0 V

S

R

Current

Sensing

Comparator

PWM

Latch

( ) Indicates CS2843A/3843A

Figure 1. Block Diagram

VCC Pwr

VREF

VOUT

Pwr GND

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